MAURY USCG vessel records
← All vessels

Z-FOUR

Towing Vessel · Built 1990s · USCG Southwest District (CGD-SW)

Z-FOUR is a 1999 towing vessel. The Coast Guard has recorded 37 inspections since 2003, most recently in August 2024, along with 1 deficiency and 11 casualty investigations between 2005 and 2019.

Records from 2003 to 2024. Most recent: inspection, 20 August 2024.

Built
1999
Last inspected
20 August 2024
Documentation
Valid · documentation file of 10 August 2026
Inspections
37
Deficiencies
1 recorded · 0 without a recorded resolution
Controls
None recorded without a removal date
Casualties
11 investigations · 2005–2019
Inspected with
12 other vessels

Identity

US Official No.
1072783
IMO number
9194165
Call sign
WDM6875
MISLE id
483645
Flag
UNITED STATES
Maury page id
psix-483645

Inspections, by type

…physical examinations9
…administrative events13
…with no type recorded15
Years with a record 19 calendar years (2003–2024)
The 37 inspections in the strip above, split by the kind of activity the US Coast Guard recorded. Years with a record are calendar years in which a record exists, not years in service. What Maury does not do.

Coast Guard record current through 23 August 2026, retrieved 5 September 2026 from PSIX. Every field on this page was recorded by the Coast Guard. Records for the Towing Vessel class in Maury's sources begin in 1980.

Documentation record

Registered dimensions (L × B × D)87.7 ft × 32.0 ft × 14.8 ft
Registered tonnagegross 100 / net 68
ITC dimensions (L × B × D)87.7 ft × 32.0 ft × 14.8 ft
ITC tonnagegross 256 / net 76
BuilderMARCO SEATTLE INC · SEATTLE, WA, UNITED STATES · built 1999
Hull materialSteel
PropulsionDiesel Reduction
Hull shapeUNSPECIFIED
Hull configurationUNSPECIFIED
Hailing portWILMINGTON, DE
Trade endorsementsCoastwise, unrestricted, Registry
DocumentationValid · issued 28 July 2026 · expires 31 July 2027
Service, as the file records itTowing Vessel
Hull formpowered (Maury's inference from propulsion, hull shape, material and length, rule hf-1; not a recorded fact)
Tonnage as PSIX records it256 - Convention (Subpart B), Gross Ton
100 - Regulatory (Subpart C or D), Gross Ton
76 - Convention (Subpart B), Net Ton
68 - Regulatory (Subpart C or D), Net Ton
Every line above is a field of the National Vessel Documentation Center's file as served by NOAA Fisheries, dated 10 August 2026, matched to this hull on its Official Number. Registered and ITC measurements are two systems and are never combined. One snapshot is held so far; documentation history begins with the next.

One vessel history report for this hull — every record on this page in one dated, citable document — $300, on request.

Inspected as a tow unit · 12

The Coast Guard recorded this vessel and the following in the same inspection activity — normally a tug and the barges in its tow. A recreational or unclassed hull in the same activity is held and not published, so it does not appear here: these lists are a floor, not a complete manifest.

CARNIVAL ENCOUNTER Passenger (Inspected) · MISLE 511501 · 2 October 2019 · activity 6835720DELTA CATHRYN Towing Vessel · MISLE 998404 · 2 October 2019 · activity 6835720TORM KANSAS Tank Ship · MISLE 816605 · 31 October 2016 · activity 6045872JAMIE RENEA Towing Vessel · MISLE 1223201 · 31 October 2016 · activity 6045872USNS PONCHATOULA (T-AO 148) Public Tankship/Barge · MISLE 276154 · 15 May 2014 · activity 4860251Z-FIVE Towing Vessel · MISLE 483647 · 15 May 2014 · activity 4860251JAMIE RENEA Towing Vessel · MISLE 1223201 · 15 May 2014 · activity 4860251PATRICIA ANN Towing Vessel · MISLE 935830 · 17 July 2011 · activity 4086144MILLENNIUM FALCON Towing Vessel · MISLE 1489 · 30 July 2009 · activity 3562242MILLENNIUM FALCON Towing Vessel · MISLE 1489 · 27 January 2009 · activity 3401320MILLENNIUM STAR Towing Vessel · MISLE 10651 · 27 January 2009 · activity 3401320LYNN MARIE Towing Vessel · MISLE 32455 · 27 January 2009 · activity 3401320REVOLUTION Towing Vessel · MISLE 819771 · 27 January 2009 · activity 3401320MILLENNIUM FALCON Towing Vessel · MISLE 1489 · 20 November 2008 · activity 3368564EAGLE Towing Vessel · MISLE 165762 · 2 August 2005 · activity 2449652EAGLE Towing Vessel · MISLE 165762 · 30 July 2005 · activity 2448951

Inspection history · 37

20 August 2024 COI Inspection · Administrative Inspection
Physical examination · Sector San Francisco · USCG Southwest District (CGD-SW) · Activity 8004236
25 May 2023 Administrative Inspection
Administrative · Sector San Francisco · USCG Southwest District (CGD-SW) · Activity 7696215
4 March 2023 Administrative Inspection
Administrative · Sector San Francisco · USCG Southwest District (CGD-SW) · Activity 7646597
12 January 2022 Administrative Inspection
Administrative · Sector San Francisco · USCG Southwest District (CGD-SW) · Activity 7379501
24 February 2021 Administrative Inspection
Administrative · Sector San Francisco · USCG Southwest District (CGD-SW) · Activity 7145834
25 August 2020 Administrative Inspection
Administrative · Sector San Francisco · USCG Southwest District (CGD-SW) · Activity 7042106
28 May 2020 Administrative Inspection
Administrative · Sector Los Angeles/Long Beach · USCG Southwest District (CGD-SW) · Activity 6963281
27 April 2020 Administrative Inspection
Administrative · Sector San Francisco · USCG Southwest District (CGD-SW) · Activity 6944541
4 April 2020 Administrative Inspection
Administrative · Sector San Francisco · USCG Southwest District (CGD-SW) · Activity 6939677
2 October 2019 Type not recorded
No type recorded · Sector San Francisco · USCG Southwest District (CGD-SW) · Activity 6835720
17 September 2019 Administrative Inspection
Administrative · Sector San Francisco · USCG Southwest District (CGD-SW) · Activity 6814150
5 September 2019 Administrative Inspection
Administrative · Sector San Francisco · USCG Southwest District (CGD-SW) · Activity 6804670
22 May 2019 Administrative Inspection · Initial Certification
Physical examination · Sector San Francisco · USCG Southwest District (CGD-SW) · Activity 6690813
10 September 2018 Administrative Inspection
Administrative · Navigation Center · Activity 6536750
29 November 2016 Industry Initiated Exam
Physical examination · Sector San Francisco · USCG Southwest District (CGD-SW) · Activity 6049549
31 October 2016 Type not recorded
No type recorded · Sector San Francisco · USCG Southwest District (CGD-SW) · Activity 6045872
28 January 2016 Administration
Administrative · Sector San Francisco · USCG Southwest District (CGD-SW) · Activity 5806211
15 January 2015 MTSA Verification · Administration · Deficiency Check
Physical examination · Sector San Francisco · USCG Southwest District (CGD-SW) · Activity 5053648
15 May 2014 Type not recorded
No type recorded · Sector San Francisco · USCG Southwest District (CGD-SW) · Activity 4860251
9 May 2014 Marine Casualty Follow Up
Physical examination · Sector San Francisco · USCG Southwest District (CGD-SW) · Activity 4856403
9 May 2014 Type not recorded
No type recorded · Sector San Francisco · USCG Southwest District (CGD-SW) · Activity 4856850
21 April 2014 Marine Casualty Follow Up
Physical examination · Sector San Francisco · USCG Southwest District (CGD-SW) · Activity 4840377
20 April 2014 Type not recorded
No type recorded · Sector San Francisco · USCG Southwest District (CGD-SW) · Activity 4840404
30 January 2013 Industry Initiated Exam · Deficiency Check
Physical examination · Sector San Francisco · USCG Southwest District (CGD-SW) · Activity 4525305
14 January 2012 Type not recorded
No type recorded · Sector San Francisco · USCG Southwest District (CGD-SW) · Activity 4227304
17 July 2011 Type not recorded
No type recorded · Sector San Francisco · USCG Southwest District (CGD-SW) · Activity 4086144
16 March 2010 Type not recorded
No type recorded · Sector San Francisco · USCG Southwest District (CGD-SW) · Activity 3696987
21 January 2010 MTSA Verification · Industry Initiated Exam
Physical examination · Sector San Francisco · USCG Southwest District (CGD-SW) · Activity 3667333
30 July 2009 Type not recorded
No type recorded · Sector San Francisco · USCG Southwest District (CGD-SW) · Activity 3562242
25 July 2009 Type not recorded
No type recorded · Sector San Francisco · USCG Southwest District (CGD-SW) · Activity 3569307
27 January 2009 Type not recorded
No type recorded · Sector San Francisco · USCG Southwest District (CGD-SW) · Activity 3401320
20 November 2008 Type not recorded
No type recorded · Sector San Francisco · USCG Southwest District (CGD-SW) · Activity 3368564
24 October 2006 MTSA Verification
Physical examination · Sector San Francisco · USCG Southwest District (CGD-SW) · Activity 2807748
21 November 2005 Type not recorded
No type recorded · Sector San Francisco · USCG Southwest District (CGD-SW) · Activity 2542061
2 August 2005 Type not recorded
No type recorded · MSO SAN FRANCISCO BAY · USCG Southwest District (CGD-SW) · Activity 2449652
30 July 2005 Type not recorded
No type recorded · MSO SAN FRANCISCO BAY · USCG Southwest District (CGD-SW) · Activity 2448951
2 December 2003 Security Plan Review - ASP
Administrative · Marine Safety Center (MSC) · Activity 1957795

Deficiency record · 1

10 - Safety of Navigation › N/A - No Subsystem › Automatic Identification System (AIS)
Issued 10 September 2018 Resolved
ZERO LENGTH OR BEAM: no dimension information (AIS Antenna Position ABCD values equals 0)
Condition: Invalid
Action required: 705 - Other - as specified
Due 5 September 2019
Resolved 5 September 2019
Resolution: Vessel has entered length and beam information.

Casualty record · 11

21 November 2005Routine · role: Involved in a Marine Casualty · serious marine incident, as classified · 1 injured · activity 2542061
20 November 2008Routine · role: Sighted in Area · activity 3368564
27 January 2009Routine · role: Involved in a Marine Casualty · activity 3401320
30 July 2009Routine · role: Transiting Vicinity of Primary Subject · activity 3562242
16 March 2010Routine · role: Involved in a Marine Casualty · activity 3696987
17 July 2011Routine · role: Transiting Vicinity of Primary Subject · activity 4086144
14 January 2012Routine · role: Involved in a Marine Casualty · serious marine incident, as classified · 1 injured · activity 4227304
20 April 2014Routine · role: Involved in a Marine Casualty · activity 4840404
9 May 2014Routine · role: Involved in a Marine Casualty · activity 4856850
31 October 2016Routine · role: Involved in a Marine Casualty · serious marine incident, as classified · 1 injured · activity 6045872
2 October 2019Major Marine Casualty · role: Sighted in Area · activity 6835720
Each line is an incident investigation the Coast Guard recorded with this hull among the vessels involved, with the date and the classification the Coast Guard gave it. Involvement is not fault. The investigation narrative is not published. Source: IIR, through 2026.

Ownership record

The Coast Guard's documentation record for this hull -- the Abstract of Title, with its owners and liens as filed -- is not in PSIX. Ask, and Maury buys it from the National Vessel Documentation Center, files it here with its date, and every reader of this page gets it.